%0 Journal Article %A Hernáez, Álvaro %A Lassale, Camille %A Castro-Barquero, Sara %A Babio, Nancy %A Ros, Emilio %A Castañer, Olga %A Tresserra-Rimbau, Anna %A Pintó, Xavier %A Martínez-González, Miguel Ángel %A Corella, Dolores %A Salas-Salvadó, Jordi %A Alonso-Gómez, Ángel M %A Lapetra, José %A Fiol, Miquel %A Gómez-Gracia, Enrique %A Serra-Majem, Lluis %A Sacanella, Emilio %A García-Arellano, Ana %A Sorlí, José V %A Díaz-López, Andrés %A Cofán, Montserrat %A Estruch, Ramón %T Mediterranean Diet and White Blood Cell Count-A Randomized Controlled Trial. %D 2021 %@ 2304-8158 %U http://hdl.handle.net/10668/18074 %X We aimed to assess the effects of the antioxidant-rich Mediterranean diet (MedDiet) on white blood cell count. Our study population included participants in the PREvención con DIeta MEDiterránea study (average age 67 years old, 58% women, high cardiovascular risk). We assessed whether a MedDiet intervention enriched in extra-virgin olive oil or nuts, versus a low-fat control diet, modified the incidence of leukocytosis (>11 × 109 leukocytes/L), mild leukopenia (<4.5 × 109 leukocytes/L), or severe leukopenia (<3.5 × 109 leukocytes/L) in individuals without the condition at baseline (n = 3190, n = 2925, and n = 3190, respectively). We also examined whether MedDiet modified the association between leukocyte count alterations and all-cause mortality. Both MedDiet interventions were associated with a lower risk of developing leukopenia (incidence rates: 5.06% in control diet, 3.29% in MedDiet groups combined; hazard ratio [95% confidence interval]: 0.54 [0.36-0.80]) and severe leukopenia (incidence rates: 1.26% in control diet, 0.46% in MedDiet groups combined; hazard ratio: 0.25 [0.10-0.60]). High cumulative adherence to a MedDiet was linked to lower risk of leukocytosis (incidence rates: 2.08% in quartile 1, 0.65% in quartile 4; HRQ4-Q1: 0.29 [0.085-0.99]) and attenuated the association between leukopenia and all-cause mortality (P-interaction = 0.032). In brief, MedDiet decreased the incidence of white blood cell count-related alterations in high cardiovascular risk individuals. %K Mediterranean diet %K leukocytosis %K leukopenia %K prevention %K randomized controlled trial %K white blood cell count %~